Journal
EXTREMOPHILES
Volume 14, Issue 4, Pages 403-407Publisher
SPRINGER TOKYO
DOI: 10.1007/s00792-010-0321-8
Keywords
Archaeon; Hyperthermophile; Proliferation; Cell fission; Septum
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Pyrobaculum islandicum is a hyperthermophilic archaeon. P. islandicum cells have been suggested to multiply by constriction, budding and branching, as no septa were observed in cells by phase-contrast light microscopy. In this study, we observed the cells using transmission electron microscopy, scanning electron microscopy, and light microscopy with dark-field image analyses, and we report binary fission via septum formation to be the main mode of P. islandicum's proliferation. Long cells reported previously were found to comprise several cylindrical cells that align in tandem.
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